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Impact of Uncontrolled vs Controlled Rate Freeze-Thaw Technologies on Process Performance and Product Quality
Chakradhar Padala1, Feroz Jameel, Nitin Rathore
1Drug Product and Device Development, Amgen Inc.
PDA Journal of Pharmaceutical Science and Technology
|April 20, 2011
Summary
Controlled rate freeze-thaw technology offers superior process performance for biomolecule storage compared to conventional methods. This approach effectively preserves sensitive proteins, like peptibodies, ensuring product quality during cryopreservation.
Area of Science:
- Biotechnology
- Protein Stability
- Cryopreservation
Background:
- Biomolecules require stable long-term storage due to limited shelf-life in liquid states.
- Cryopreservation is a preferred method, but protein stability depends heavily on freeze-thaw methodology.
- Protein characteristics influence stability during frozen storage.
Purpose of the Study:
- To evaluate the impact of different freezing and thawing methods on process performance and product quality.
- To compare conventional uncontrolled rate freeze-thaw with controlled rate technologies.
- To assess the stability of different protein types under various freeze-thaw conditions.
Main Methods:
- Two freezing methods were compared: uncontrolled (walk-in freezers/cold rooms) and controlled rate (Celsius/CryoFin™ technologies).
- Two protein types, a fusion protein and a peptibody, were used to assess product quality.
- Stability-indicating assays were employed to evaluate the impact of freeze-thaw cycles.
Main Results:
- Controlled rate freeze-thaw technology demonstrated superior process performance, including reduced process times and improved cryoconcentration.
- Peptibodies showed sensitivity to uncontrolled freeze-thaw methods, while fusion proteins remained stable.
- Controlled rate technologies effectively protected sensitive biomolecules from freeze-thaw damage.
Conclusions:
- Controlled rate freeze-thaw technologies provide significant advantages in process efficiency and product preservation for sensitive biomolecules.
- The choice of freeze-thaw method is critical for maintaining the quality attributes of specific proteins.
- Celsius technology offers an effective solution for protecting biomolecules sensitive to conventional freeze-thaw processes.
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